There is really no street that accesses Aguas Calientes from Cusco, so having a bus for the entire journey is just not an alternative. The trains are your best guess! This tour was so educational and exciting! Our guide, Pablo, understood a lot of about the history from the web https://bestmachupicchutoursfromc84826.verybigblog.com/26451139/top-best-machu-picchu-tours-from-cusco-secrets